On Sun, Mar 21, 2010 at 8:46 PM, Craig Ringer <craig@xxxxxxxxxxxxxxxxxxxxx> wrote: > On 22/03/2010 1:04 AM, Dave Crooke wrote: >> >> If you are really so desparate to save a couple of GB that you are >> resorting to -Z9 then I'd suggest using bzip2 instead. >> >> bzip is designed for things like installer images where there will be >> massive amounts of downloads, so it uses a ton of cpu during >> compression, but usually less than -Z9 and makes a better result. > > bzip2 doesn't work very well on gzip'd (deflated) data, though. For good > results, you'd want to feed it uncompressed data, which is a bit of a pain > when the compression is part of the PDF document structure and when you > otherwise want the PDFs to remain compressed. > > Anyway, if you're going for extreme compression, these days 7zip is often a > better option than bzip2. There's often a choice of two packages, 7z, and 7za, get 7za, it's the later model version. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
